'A'isha reported Allah's Messenger ﷺ as saying: He who innovates things in our affairs for which there is no valid (reason) (commits sin) and these are to be rejected.
The Prophet Muhammad ﷺ also taught us that we should be respectful when rejecting any innovations as it is important to maintain good relations with others even if we disagree with them on certain matters. We must remember that all Muslims are brothers and sisters in faith so we must treat each other with kindness and respect even if we do not agree on certain issues related to religion.